While I do agree that that stuff is symbolically interesting, don't you agree that it would have been more interesting had Bane been a real revolutionary who tears down the system and takes Gotham back from the rich and powerful to give it to the people? The city itself would have probably dissolved into total anarchy (something we only got glimpses of) and the great symbolic twist would have been that it ends up being one of the rich and powerful that saves the city from destroying itself.

It should have been that way, and it could have if the "front" plan was more developed such as in the second act of TDKR, but I'm perfectly fine with the LoS being used once again. Bane's idea of giving this false hope should have been more developed though while focusing less on the time bomb until the very last part of the final act when it was the main focus after Talia's reveal.